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K&N Air Filters!!!

We have been using and installing KN products for years. The first thing we do to a C4 is modify the air box and install a KN filter. Results are always the same, the car runs better, end of story.

If you want a free copy of our C4 Corvette performance upgrade manual go to: http://www.corvetteweb.com

Tony C and the Vette Nuts at Ptech
 
put a kn air filter in my 94, week later it stumbled and sputtered. maf sensor was dirty from the oil on the filter. i never put any oil on it. i installed it right from the box. car is fast enough with stock air filter.
 
I too just went with a paper filter. I will be fine for now with the standard type.
 
Well, either way, I'd say you can't go wrong, with one, you get it a little cheaper, and don't have to worry about oil, the other you gain a few HP, and gain the ease of a lifetime filter (for most of us anyways, I know I'll never drive 1,000,000 miles :)
 
Hype Hype Hype

Where are the facts?

I took the K/N from my BMW for my son's. No difference in performance for either of us, regardless of miles.

Put one on my Pathfinder. Result: $60 bucks poorer; no performance change.

Put one on my '84 Vette. I felt no difference.

Put one on the 406 in my '84 TPI conversion. Bought the hype, but I needed a filter.

Next time I'll ask for some data and ignore the hype, then pocket the cash. You spend yours; hopefully better than I.
 
In the case of the VETTE... if a K&N filter adds 5 peak HP you normally wont be able to feel it.
But that doesnt mean it doesnt add anything.

It is proven that a K&N filter will flow more CFM than a paper element.
Whether or not your vehicle will use the extra air to perform better is on a case by case basis
 
I tried a Holly Power Shot filter. Same concept as the K&N. I really could not feel the difference but I did pick up 3 mph in the 1/4 as measured by my Gtech. No complaints and would do it again.
 
General aviation IC engines use cotton filters, too.

When you think about it, the whole idea is to assure continued, reliable power. I think paper filters just don't cut it if they are getting dirty. You wouldn't want to have only 80 percent of full power in an airplane, when you just calculated your take-off weight, air density, etc. for an engine that was supposed to be delivering 100 percent. Crashing isn't fun. Paper filters are fine for automobiles; there reliable, cheap, and peak power isn't that critical. Racing, on the other hand, may be more like flying an airplane. You want all the power that the system is capable of achieving on any particular day. A clean (new) paper air filter can do that. Bring a new one to the track with you, or use a K&N week after month after year. Just my humble opinion.
 
If the K&N can't get the power that we can feel, what is the reason for us to pour out almost 6 times buck over a paper fram filter for it? I just can't understand.:nono
 
General aviation IC engines

Everything is safety wired on the big jets. What's the point?

You climb a thousand feet and you're down on power, too. We talking apples or oranges, here?

Some here speak of cost vs performance. Others echo marketing slogans and material and spend, spend spend. Racers with nearly limitless bucks can afford to spend to eke out every last ounce of power. Few of us can, having our dollars called by many things.

:w Mike
 
Filters

K&N on all my cars. For the long haul it is more economical.:)
 
Exactly. If your thinking long term, it's more efficient all around. If your going to tune up a car, and sell it, don't bother.
 
Re.: filters and airplanes - It is a big deal for piston aircraft engines, the ones in general aviation airplanes. You need a filter that always flows more air than the engine can use, whether its clean or dirty. That is one reason why the technology used in a K&N and similar filters has been used on piston aircraft for decades. Its just the point that K&N and others make - filtering, yet not clogging, maintaining high air flow.
 
I like my K&N. It compliments the Granatelli MAF, 52mm TB and 1.6 Full Roller Rockers. When you hit 3500 rpm... Everything works together and the car lights up like a Christmas tree. If your going to cruise around and look cool....stay stock..... If you want Mustang Cobra Supercharged SVT's lookin at your tail lights and reading your custom plates..... then do every mod you can afford!!!!
 
The first mod for my vettes (L98 LT1) was and will be for the next the K&N filters and open lid. I have been playing-testing it on the road and the dragstrip and I know for sure, there is a big difference in both cars (the most in the middle to top end revs) between paper and K&N. Fuel savings, engine performance, throttle response.

If the vette is for pictures you won´t feel any difference at all, paper it´s OK but if you want to get the most of it spend the 60 bucks and don´t look back!

Just my opinion :w
 
Im1ru2 said:
Defininetly Change the filter,I did on my 86 L98 also cut open the air box to Really let it flow- my .02



Jamm'in Jeff
I agree...it was the easiest mod for me...K&N air filter ...and I bought a nice open lid...It made a world of difference for my 1995 ZF6 speed...I can hear and feel the difference....Now for my 2004 I put on a Donaldson Blackwing...:D :upthumbs
 
I thought the K&N filter with a cut open lid was a very good mod for the dollar amount. I bought the K&N for $32.00 off eBay.

It's not something that will give you a huge gain but if you have some pretty extensive mods and stick with the paper filter, I think the difference would be felt the most.

I haven't had a problem with the oil getting on the MAF. That is usually from over oiling the filter element.
 
Alex D said:
I personally don't buy them....they do not give any power gain over a FRAM paper filter....we extensively dynoed this issue on LS.com in 1998 on the LS F-Bodies and a recent filter test to be found on www.bobistheoilguy.com showed too that K&Ns are not gaining any power...now for the bad part.....the oil on K&Ns migrates from the filter panel onto the MAF wires and contaminates them, so be prepared to clean your MAF wires if you run a K&N............I'd rather put a new paper element in there every 10,000 miles or son and be done with it......
I agree. Any quality manufactured paper filter is more than adequate.

Personally I use Fram. It just happens to be what is at my local parts store.
 
I got a K&N cone filter with Ram Air and have been running it with success since spring. I would not change back to a regular filter. The only thing with a K&N is over oiling, as long as you go easy on the sauce you will be fine.


Justin
 
I went with the K&N simply because most auto part stores that I have been to don’t seem to have filters for an 84 in stock and they have to special order it. So I figure I'm saving time and gas in just trying to track one down every time I do a tune up. Plus it seemed to help out performance a little bit as well.
 

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